Lol, who has these reefs where you can take rocks and corals out at will? My rocks are all carefully interlocked and the corals encrusted. But that was just an aside. Interesting about the H2O2. Any way it could be used inside the tank?
That's my problem... I want them gone, desperately, but I'm not in any position to remove the rock long term due to acros and montis encusting on it.